Based on the child’s dietary history, accompanying symptoms, and exclusion of organic diseases, it is usually possible to determine stagnant cough. Cough with food accumulation is most common in young children with weak spleen and stomach, weak digestion, and a history of poor dietary habits such as irregular eating, overeating, and eating too much food. Children with food retention cough often have cough with phlegm, obvious cough at night; and accompanied by abdominal distension, abnormal stools, constipation or diarrhea, and a strong sour and putrid taste; some may be accompanied by heavy breath, vomiting, and a thick tongue with a red tip. After combining the child’s poor dietary history and accompanying symptoms, and examining the child to exclude upper respiratory tract infections, bronchitis, pneumonia and other organic diseases, the cough is usually considered to be caused by food retention. If the cough is caused by poor diet and accumulation of food, the cough will be alleviated by adjusting and controlling the diet and regulating the spleen and stomach, and the gastrointestinal function will be improved. Cough persistent or progressive aggravation, you need to go to the hospital for further examination, to clarify whether there is a combination of mycoplasma pneumonia or other diseases, in accordance with the doctor’s instructions in a timely and standardized treatment.